Atlas: Created page with "{{under-construction}} '''MCOL''' or '''HCOL''' is a collision format developed by Aqualead and found in some Wii and 3DS games (and suspected to be used in GameCube titles as well), such as ''One Piece: Unlimited Adventure'', ''One Piece: Unlimited Cruise Episode 1 - The Treasure Beneath The Waves'', ''One Piece: Unlimited Cruise Episode 2: Awakening of a Hero'', ''One Piece: Unlimited Cruise SP'' and ''[[One Piece: Unlimited Cruise SP 2]..."

2025-05-22T19:48:22Z

Created page with "{{under-construction}} '''MCOL''' or '''HCOL''' is a collision format developed by Aqualead and found in some Wii and 3DS games (and suspected to be used in GameCube titles as well), such as ''One Piece: Unlimited Adventure'', ''One Piece: Unlimited Cruise Episode 1 - The Treasure Beneath The Waves'', ''One Piece: Unlimited Cruise Episode 2: Awakening of a Hero'', ''One Piece: Unlimited Cruise SP'' and ''[[One Piece: Unlimited Cruise SP 2]..."

New page

{{under-construction}}
'''MCOL''' or '''HCOL''' is a collision format developed by [[Aqualead]] and found in some [[Wii]] and [[3DS]] games (and suspected to be used in [[GameCube]] titles as well), such as ''[[One Piece: Unlimited Adventure]]'', ''[[One Piece: Unlimited Cruise Episode 1 - The Treasure Beneath The Waves]]'', ''[[One Piece: Unlimited Cruise Episode 2: Awakening of a Hero]]'', ''[[One Piece: Unlimited Cruise SP]]'' and ''[[One Piece: Unlimited Cruise SP 2]]''.

= File Format =
The file byte order can be either big endian (Wii) or little endian (3DS).

== Header ==
The file starts with the following header:

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Char[4] || '''File magic'''. Always ''ALMC'' in ASCII.
|-
| 0x04 || UInt32 || {{Unknown-left|'''Unknown'''. Always 0x18?}}
|-
| 0x08 || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x0C || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x10 || UInt32 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x14 || UInt32 || '''Number of triangle indices''' ('''I''').
|-
| 0x18 || UInt16 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x1A || UInt16 || {{Unknown-left|'''Unknown'''.}}
|-
| 0x1C || UInt32 || '''Number of vertices''' ('''V''').
|-
| 0x20 || UInt32 || '''Number of extra attributes''' ('''A''').
|-
| 0x24 || Float[4] || '''Minimum value point''', made of XYZ coordinates and a normal value (?)
|-
| 0x34 || Float[4] || '''Maximum value point''', made of XYZ coordinates and a normal value (?)
|}

== Vertex Data ==
After the header comes the vertex data, stored as XYZ coordinates and (maybe) a normal value.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || Float[3]['''V'''] || Vertex XYZ position and normal (?)
|}

== Index Data ==
After the vertex data comes the triangle indices.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || UInt32[3]['''I''' / 3] || Triangle indices
|}

== Extra Attribute Data ==
After the index data comes the extra attribute data.

{| class="wikitable"
! Offset !! Type !! Description
|-
| 0x00 || UInt16[2]['''A'''] || {{Unknown-left|Extra attributes, unknown usage.}}
|}

= Tools =
The following tools can handle MCOL/HCOL files:
* (none)

[[Category:Aqualead File Formats]]

MCOL (File Format) - Revision history